One I remember was Zorua or something disguised as Dialga and most of us were trapped in an Faction War event that we couldn't unjoin and everyone, including me, panicked. I think Wolf wasted a Master Ball as the end result or someone else.

(11:44:54) BRM [w00t w00t]: anyone have hippowdon
(11:44:55) [TR] Dominique-XLR: u k how he is
(11:45:02) ±Tauros: Carbink goes to grab their item from the Gachapon Machine but the noise lured a Wild Pokémon!